RRC ID 52552
著者 Kunimatsu R, Gunji H, Tsuka Y, Yoshimi Y, Awada T, Sumi K, Nakajima K, Kimura A, Hiraki T, Abe T, Naoto H, Yanoshita M, Tanimoto K.
タイトル Effects of high-frequency near-infrared diode laser irradiation on the proliferation and migration of mouse calvarial osteoblasts.
ジャーナル Lasers Med Sci
Abstract Laser irradiation activates a range of cellular processes and can promote tissue repair. Here, we examined the effects of high-frequency near-infrared (NIR) diode laser irradiation on the proliferation and migration of mouse calvarial osteoblastic cells (MC3T3-E1). MC3T3-E1 cells were cultured and exposed to high-frequency (30 kHz) 910-nm diode laser irradiation at a dose of 0, 1.42, 2.85, 5.7, or 17.1 J/cm2. Cell proliferation was evaluated with BrdU and ATP concentration assays. Cell migration was analyzed by quantitative assessment of wound healing using the Incucyt® ZOOM system. In addition, phosphorylation of mitogen-activated protein kinase (MAPK) family members including p38 mitogen-activated protein kinase (p38), stress-activated protein kinase/Jun-amino-terminal kinase (SAPK/JNK), and extracellular signal-regulated protein kinase (ERK)1/2) after laser irradiation was examined with western blotting. Compared to the control, cell proliferation was significantly increased by laser irradiation at a dose of 2.85, 5.7, or 17.1 J/cm2. Laser irradiation at a dose of 2.85 J/cm2 induced MC3T3-E1 cells to migrate more rapidly than non-irradiated control cells. Irradiation with the high-frequency 910-nm diode laser at a dose of 2.85 J/cm2 induced phosphorylation of MAPK/ERK1/2 15 and 30 min later. However, phosphorylation of p38 MAPK and SAPK/JNK was not changed by NIR diode laser irradiation at a dose of 2.85 J/cm2. Irradiation with a high-frequency NIR diode laser increased cell division and migration of MT3T3-E1 cells, possibly via MAPK/ERK signaling. These observations may be important for enhancing proliferation and migration of osteoblasts to improve regeneration of bone tissues.
巻・号 33(5)
ページ 959-966
公開日 2018-7-1
DOI 10.1007/s10103-017-2426-0
PII 10.1007/s10103-017-2426-0
PMID 29302842
MeSH Adenosine Triphosphate / biosynthesis Animals Cell Line Cell Movement / radiation effects* Cell Proliferation / radiation effects DNA / biosynthesis Infrared Rays* Lasers, Semiconductor* Mice Osteoblasts / cytology* Osteoblasts / radiation effects* Signal Transduction / radiation effects Skull / cytology*
IF 2.342
引用数 4
リソース情報
ヒト・動物細胞 MC3T3-E1(RCB1126)